On the myriapods collected during the 'Skeat expedition' to the Malay peninsula, 1899-1900 / by F.G. Sinclair (formerly F.G. Heathcote).

  • F. G. Heathcote
Date:
1901
Catalogue details

Licence: In copyright

Credit: On the myriapods collected during the 'Skeat expedition' to the Malay peninsula, 1899-1900 / by F.G. Sinclair (formerly F.G. Heathcote). Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    small tubercles. Surface of head covered with short stiff hairs, especially towards the upper lip. Frontal furrow deep, reaching from posterior of head to the level of antennae. Antennae reaching to 3rd tergite. tergite 2 mm. long by 5 mm. broad. Keels well developed ; angle sharp, about on a level with the keel. Edges of keel not so much bent upwards as those of the 2nd somite. The anterior margin of the keel is rounded-off, following the curve of the anterior margin of the tergite. 2nd tergite barely 1| mm. long by broad. Keel much pointed posteriorly, the point reaching to about the middle of the succeeding somite. Edge of keel more turned up than in the first. 3rc^ ^ Ath tergites. Length 1| mm., breadth 5|. External edges of keels curve upward; traces of the strong thick margin appear. bth tergite. This tergite show’s the shape and dimensions of the remaining ones. Its length is 2 mm. and breadth 6 mm. The contrast betw’een it and the preceding ones is very great. Keels turned up at the edges and a thick margin on the anterior border. The tergite is divided by a w^ell-marked transverse furrow’’ reaching to the bases of the keels. The pleural heels have the form of a ridge in the first four somites ; in the fifth they become a tubercle. The anal tergite has the form of a truncated cone, with tw’O very prominent tubercles at the two corners. The amount of taper tow’ards the tail may be judged from the following measurements :— 16th tergite 17th „ H „ 18th „ 5 „ 19th „ 3i „ Sterna smooth ; the basal elevated portion, from which the legs arise, has a strongly marked median longitudinal furrow, which is still apparent in the last somite. The femur is 2J times as long as the trochanter. Strongylosoma skeatii, sp. nov. (Plate XXXI. fig. 39, and Plate XXXII. figs. 96, 97, 100.) From Tapelung, Patalung State. Length about 22 mm., breadth 3-^ mm. The specimens are difficult to measure, as they are tightly curled up; I do not, however, think the error is great. Colour a dark ferruginous brown. Head, 1st somite, and the greater part of the antennae almost black. Sterna, legs, keels, and tw’o small circular spots just above the antennae yellows The back is ornamented with tw’O pale stripes, which, in the keeled part of the somite, diverge, so that the posterior ends are considerably more separated than the anterior. On the cylindrical [16]
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